Relevant bibliographies by topics / Brown trout

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Brown trout'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 June 2024

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Journal articles on the topic "Brown trout"

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Lyach, Roman. "The Ten Commandments of Successful Fishery Management of Wild Brown Trout Salmo trutta Populations in Salmonid Streams in the Bohemian Region (Czech Republic)." Applied Sciences 12, no. 9 (May 3, 2022): 4602. http://dx.doi.org/10.3390/app12094602.

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The brown trout Salmo trutta is a fish species that is vulnerable to climate change and anthropogenic activities in its native range. The case studies of successful restoration of brown trout populations are rare. In this study, fishery managers who successfully restored brown trout populations are sharing their know-how and advice about their conservation strategy. Overall, twenty fishery managers were interviewed to give advice about their successful conservation practices of local brown trout populations. Using a qualitative analysis method, ten main recommendations were extracted: (1) assess the status of local brown trout populations, (2) form a union of fisheries managers and work together, (3) support the ability of the streams to retain water, (4) prevent artificial removal of water from the salmonid streams, (5) adjust the brown trout stocking strategy to individual streams, (6) set strict protection of native wild brown trout populations, (7) enforce angling bans and regulations, (8) support the rearing of brown trout in the aquaculture sector, (9) limit brown trout stocking to genetically native fish, and (10) stock smaller 0 + brown trout instead of large adult ones. In conclusion, the fishery managers agreed on the basic management steps that need to be made to conserve brown trout populations.
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Zimmerman, Julie KH, and Bruce Vondracek. "Interactions of slimy sculpin (Cottus cognatus) with native and nonnative trout: consequences for growth." Canadian Journal of Fisheries and Aquatic Sciences 63, no. 7 (July 1, 2006): 1526–35. http://dx.doi.org/10.1139/f06-054.

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We examined growth of native slimy sculpin (Cottus cognatus), native brook trout (Salvelinus fontinalis), and nonnative brown trout (Salmo trutta) to investigate potential interactions of a native nongame fish with native and nonnative trout. Enclosures (1 m2) were stocked with five treatments (juvenile brown trout with sculpin, juvenile brook trout with sculpin, and single species controls) at three densities. Treatments (with replication) were placed in riffles in Valley Creek, Minnesota, and growth rates were measured for six experiments. We examined the difference in growth of each species in combined species treatments compared with each species alone. We did not find evidence of inter actions between brook trout and sculpin, regardless of density or fish size. However, sculpin gained greater mass when alone than with brown trout when sculpin were >16 g. Likewise, brown trout grew more when alone than with sculpin when brown trout were >24 g. In contrast, brown trout ≤5 g grew more with sculpin compared with treatments alone. We suggest that native brook trout and sculpin coexist without evidence of competition, whereas nonnative brown trout may compete with sculpin.
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Spens, Johan, Anders Alanärä, and Lars-Ove Eriksson. "Nonnative brook trout (Salvelinus fontinalis) and the demise of native brown trout (Salmo trutta) in northern boreal lakes: stealthy, long-term patterns?" Canadian Journal of Fisheries and Aquatic Sciences 64, no. 4 (April 1, 2007): 654–64. http://dx.doi.org/10.1139/f07-040.

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This study of 193 boreal lakes of northern Sweden suggests a long-term detrimental impact of introduced brook trout (Salvelinus fontinalis) on brown trout (Salmo trutta) populations. Thirteen of 65 (20%) brown trout populations in lakes exposed to brook trout went extinct, whereas the extinction rate in unexposed lakes was significantly lower (2%). We verified other studies that indicate that altitude strongly affects the distribution of the two species; brown trout populations in our higher altitude lakes were more sensitive to impact from brook trout. In 28 lakes above 285 m, 12 trout populations exposed to brook trout went extinct, while only one population became extinct in 37 lakes below 285 m. No effects of other environmental factors were detected (e.g., water chemistry, stocking of rainbow trout (Oncorhynchus mykiss), fish species community assembly, migration barriers, or lake morphometry on brown trout extinction). The time lag between the first record of brook trout introduction and subsequent extinction of brown trout was two decades on average (maximum 70 years). Even though further stocking of brook trout has been stopped, our analysis suggest that existing sympatric populations may continue to pose an extinction threat to brown trout.
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Öhlund, Gunnar, Fredrik Nordwall, Erik Degerman, and Torleif Eriksson. "Life history and large-scale habitat use of brown trout (Salmo trutta) and brook trout (Salvelinus fontinalis) — implications for species replacement patterns." Canadian Journal of Fisheries and Aquatic Sciences 65, no. 4 (April 1, 2008): 633–44. http://dx.doi.org/10.1139/f08-003.

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Simple models of temperature-mediated interference competition have generally failed to explain salmonid species replacement patterns along altitudinal gradients, a fact that emphasizes the need to link individual features and their relation to habitat characteristics to population-level dynamics. We compared life history parameters in stream-resident populations of brook trout (Salvelinus fontinalis) and brown trout (Salmo trutta) in eight boreal streams. By use of electrofishing data from 1000 sites, we analyzed and related differences in life history traits to habitat- and interaction-related patterns of growth and densities of brook and brown trout, respectively. Brown trout were competitively dominant throughout the size span of sampled sympatric sites and lowered growth rates in sympatry were mainly caused by environmental factors, revealing a link between brook trout invasions and habitat-related limitations on brown trout performance. Still, the frequency of allopatric brook trout sites increased in the smallest watersheds, indicating that localities with a high degree of brook trout dominance rarely sustain brown trout over time. Brook trout populations had higher turnover rates and proportions of mature females than brown trout populations. Our results suggest growth potential and its effect on population fecundity as a critical factor limiting competitive ability and distribution of brown trout in Swedish brook trout dominated headwaters.
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Chivers, Douglas P., Anthony Mathiron, Janelle R. Sloychuk, and Maud C. O. Ferrari. "Responses of tadpoles to hybrid predator odours: strong maternal signatures and the potential risk/response mismatch." Proceedings of the Royal Society B: Biological Sciences 282, no. 1809 (June 22, 2015): 20150365. http://dx.doi.org/10.1098/rspb.2015.0365.

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Previous studies have established that when a prey animal knows the identity of a particular predator, it can use this knowledge to make an ‘educated guess' about similar novel predators. Such generalization of predator recognition may be particularly beneficial when prey are exposed to introduced and invasive species of predators or hybrids. Here, we examined generalization of predator recognition for woodfrog tadpoles exposed to novel trout predators. Tadpoles conditioned to recognize tiger trout, a hybrid derived from brown trout and brook trout, showed generalization of recognition of several unknown trout odours. Interestingly, the tadpoles showed stronger responses to odours of brown trout than brook trout. In a second experiment, we found that tadpoles trained to recognize brown trout showed stronger responses to tiger trout than those tadpoles trained to recognize brook trout. Given that tiger trout always have a brown trout mother and a brook trout father, these results suggest a strong maternal signature in trout odours. Tadpoles that were trained to recognize both brown trout and brook trout showed stronger response to novel tiger trout than those trained to recognize only brown trout or only brook trout. This is consistent with a peak shift in recognition, whereby cues that are intermediate between two known cues evoke stronger responses than either known cue. Given that our woodfrog tadpoles have no evolutionary or individual experience with trout, they have no way of knowing whether or not brook trout, brown trout or tiger trout are more dangerous. The differential intensity of responses that we observed to hybrid trout cues and each of the parental species indicates that there is a likely mismatch between risk and anti-predator response intensity. Future work needs to address the critical role of prey naivety on responses to invasive and introduced hybrid predators.
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Barylo, Ye O., Yu V. Loboiko, and B. S. Barylo. "Fishery-exteriors characteristics of the brooders of brown trout, rainbow trout and brook trout." Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies 21, no. 90 (April 26, 2019): 88–92. http://dx.doi.org/10.32718/nvlvet-a9015.

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This study aims to determine the reproductive indices of three types of salmon fish: brown trout (Salmo trutta morfa fario Linnaeus (1758), rainbow trout (Oncorhynchus mykiss Walbaum, 1792) and brook trout (Salvelinus fontinalis Mitchill, 1814) in aquaculture. For this purpose, 10 females and 10 males of each species were selected on an analogous basis and the main fishery-exteriors and reproductive characteristics were identified. The researching of relative fertility permit to establish that this indicator in brook trout females was 18.36% higher compared to rainbow trout, however, by 7.5% lower compared to the brown trout. It was found that brook trout eggs had less weight and size in comparison with other studied species. In particular, the weight and diameter of the eggs were 2.89 and 9.7% respectively lower than of rainbow trout, as well as 8.1 and 3.44% respectively lower compared to the brown trout. When studying the quantity of ejaculate, it was found that on average, brook trout males had 16.95% less of ejaculates compared to rainbow trout males, but 79.6% more than of brown trout males. When comparing the main indices of the brooders body of the studied species, it was found that the condition factor of the brook trout and rainbow trout females was quite high at 1.55–1.57, the brown trout one was 1.35, and the profile index respectively was 3.5, 3.52 and 4.0. The males' condition factor of brook trout, rainbow trout and brown trout was respectively 1.64, 1.52 and 1.35. Fishery-exteriors indicators met the requirements of brooders species and age specificity norms of the studied fish species.
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Rahel, Frank J., and Nathan P. Nibbelink. "Spatial patterns in relations among brown trout (Salmo trutta) distribution, summer air temperature, and stream size in Rocky Mountain streams." Canadian Journal of Fisheries and Aquatic Sciences 56, S1 (November 30, 1999): 43–51. http://dx.doi.org/10.1139/f99-210.

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Stream size interacted with mean July air temperature to influence the distribution of brown trout (Salmo trutta) in southeastern Wyoming streams. The geographic range of brown trout was positively associated with mean July air temperatures of 19-22°C. Within this thermal zone, brown trout were more likely to occur in large streams (>4 m wetted width) than in small streams. We used a geographic information system to examine spatial patterns in the distribution of anomalous sites (i.e., sites predicted to have brown trout but which lacked this species). Sites that lacked brown trout but contained brook trout (Salvelinus fontinalis) tended to be on small streams at the cold margin of the 19-22°C thermal window. Sites lacking both brown trout and brook trout tended to be on small streams clustered in three of the six study drainages. The spatial aggregation of these sites suggests that additional regional factors influence the occurrence of brown trout in southeastern Wyoming. It is hypothesized that these factors could involve land-use practices interacting with basin geology and geomorphology. Classification models that incorporate a few general habitat factors are useful for identifying stream reaches with the potential to support brown trout and for directing management efforts to sites where this potential is not realized.
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Borgstrøm, Reidar, Sigurd Rognerud, Sondre Meland, and Bjørn Olav Rosseland. "Introduced European minnow Phoxinus phoxinus in alpine lakes may increase total mercury concentration in brown trout Salmo trutta." Fauna norvegica 41 (November 26, 2021): 41–49. http://dx.doi.org/10.5324/fn.v41i0.3967.

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In Norway, the cyprinid European minnow Phoxinus phoxinus has been spread far outside its previous natural distribution area, with lots of establishments in mountain lakes where brown trout Salmo trutta originally was the only fish species. We have analysed δ15N and total mercury (THg) concentration in brown trout from eight lakes, situated between 1031 and 1244 m a.s.l. on the Hardangervidda mountain plateau, southern Norway. One of the lakes is inhabited by brown trout and European minnow, while in the other seven lakes, brown trout is the only fish species. δ15N of brown trout were significantly higher in the population with co-existing European minnow, indicating a higher trophic position of brown trout in this population than in the allopatric populations, probably caused by piscivory, as indicated by frequent occurrence of European minnow in brown trout diet. The mercury concentrations in brown trout from this lake had values up to around 0.4 mg THg per kg wet weight. The concentrations were significantly higher than in the lakes without European minnow, and together with the δ15N values, indicating that translocation and establishment of European minnow may increase the trophic position of brown trout in previously allopatric populations, and thereby also increase the mercury level.
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McHugh, Peter, and Phaedra Budy. "An experimental evaluation of competitive and thermal effects on brown trout (Salmo trutta) and Bonneville cutthroat trout (Oncorhynchus clarkii utah) performance along an altitudinal gradient." Canadian Journal of Fisheries and Aquatic Sciences 62, no. 12 (December 1, 2005): 2784–95. http://dx.doi.org/10.1139/f05-184.

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Temperature-mediated competition (i.e., dominance shifts between species depending on temperature) may explain the segregation of salmonid species along altitudinal stream gradients. We evaluated this hypothesis for exotic brown trout (Salmo trutta) and native Bonneville cutthroat trout (Oncorhynchus clarkii utah) by rearing them in experimental sympatry and allopatry using enclosures constructed at six sites spaced along a 45-km segment of a mountain stream. For both species, we compared condition and growth between allopatric and sympatric treatment groups. We found that brown trout negatively affected cutthroat trout performance, whereas cutthroat trout failed to impart an effect in the reverse direction, regardless of temperature. Thus, we documented asymmetric competition between these species but found little evidence indicating that its outcome was influenced by temperature. Brown trout – cutthroat trout segregation is therefore unlikely to be due to temperature-mediated competition. Instead, brown trout may have displaced cutthroat trout from downstream areas through competition or other mechanisms, while abiotic factors preclude their (brown trout) invasion of upper elevations. Given the magnitude of effect observed in our study, we recommend that brown trout receive greater consideration in cutthroat trout conservation.
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Al-Chokhachy, Robert, David Schmetterling, Chris Clancy, Pat Saffel, Ryan Kovach, Leslie Nyce, Brad Liermann, Wade Fredenberg, and Ron Pierce. "Are brown trout replacing or displacing bull trout populations in a changing climate?" Canadian Journal of Fisheries and Aquatic Sciences 73, no. 9 (September 2016): 1395–404. http://dx.doi.org/10.1139/cjfas-2015-0293.

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Understanding how climate change may facilitate species turnover is an important step in identifying potential conservation strategies. We used data from 33 sites in western Montana to quantify climate associations with native bull trout (Salvelinus confluentus) and non-native brown trout (Salmo trutta) abundance and population growth rates (λ). We estimated λ using exponential growth state-space models and delineated study sites based on bull trout use for either spawning and rearing (SR) or foraging, migrating, and overwintering (FMO) habitat. Bull trout abundance was negatively associated with mean August stream temperatures within SR habitat (r = −0.75). Brown trout abundance was generally highest at temperatures between 12 and 14 °C. We found bull trout λ were generally stable at sites with mean August temperature below 10 °C but significantly decreasing, rare, or extirpated at 58% of the sites with temperatures exceeding 10 °C. Brown trout λ were highest in SR and sites with temperatures exceeding 12 °C. Declining bull trout λ at sites where brown trout were absent suggest brown trout are likely replacing bull trout in a warming climate.
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Dissertations / Theses on the topic "Brown trout"

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O'Neal, Sarah Louise. "Lessons to learn from all out invasion life history of brown trout (Salmo trutta) in a Patagonian river /." Diss., [Missoula, Mont.] : The University of Montana, 2008. http://etd.lib.umt.edu/theses/available/etd-05142008-142539/.

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Meredith, Christy. "Factors influencing the distribution of brown trout (Salmo trutta) in a mountain stream: Implications for brown trout invasion success." DigitalCommons@USU, 2012. https://digitalcommons.usu.edu/etd/1324.

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Brown trout (Salmo trutta), one of the world’s most successful introduced species, negatively impacts native aquatic communities through predation, competition, and ecosystemlevel effects. Thus, there is a need to understand factors controlling the distribution of exotic brown trout in river systems, in order to prioritize and develop conservation and management strategies. Within the context of invasion success, I investigated how the physical template of the Logan River influences the distribution of brown trout along a longitudinal gradient, and the potential for brown trout predation on the native mottled sculpin (Cottus bairdi). The Logan River, Utah USA, is a high-elevation, mountain river exhibiting a wide range of physical habitat characteristics along the altitudinal (or elevational) gradient. In chapter 1, I evaluated whether longitudinal trends in geomorphology contribute to higher potential mortality of brown trout fry at high elevations due to flood-caused streambed scour. High-elevation spawning gravels did not exhibit higher scour compared to low elevations, because brown trout locally chose low-scour areas for spawning. In chapter 2, I investigated the importance of gravel availability, versus other habitat factors, in controlling the spatial distribution of brown trout redd densities. Using a Bayesian hierarchical modeling approach, I demonstrated that anchor ice, distance from high-quality backwater habitat, and to a lesser-extent gravel availability, best explained redd densities. Finally, in chapter 3, I evaluated the potential predatory effects of exotic brown trout on native mottled sculpin (Cottus bairdi). High rates of sculpin consumption contrasted to previously documented low rates of predation by native Bonneville cutthroat (Oncorhynchus clarkii) and depended on abiotic factors controlling the distribution of both species. Collectively, my research suggests that both abiotic factors and source-population dynamics structure brown trout distributions on the Logan River, and ultimately the potential impacts of this invasive fish. Specifically, the distribution of anchor ice and distance from dam backwaters are important drivers of the brown trout distribution, which may extend to other systems. These drivers, including how they may be influenced by future climate change and habitat alteration, should be considered in management efforts to control brown trout expansion and to limit the predatory impacts of brown trout.
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Porter, Pamela E. "Comparison between the subsurface environment of brown trout (Salmo trutta) redd and nonredd sites in two North Carolina streams." Thesis, Virginia Polytechnic Institute and State University, 1985. http://hdl.handle.net/10919/101252.

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The gravel environment of 30 brown trout (Salmo trutta) redds and adjacent nonredd sites in two western North Carolina streams were studied during the incubation period in 1979-1980 and 1980-1981. Intragravel water temperature, dissolved oxygen concentration, and percent oxygen saturation were highly correlated with surface water measurements, indicating that intragravel water is of surface origin. Permeability ranged from 250 to 149,350 cm/hr and averaged 6,150 cm/hr. Apparent velocity varied from 0 to 1,000 cm/hr and averaged 30 cm/hr. Permeability in redds was significantly greater than at nonredd sites. No significant differences in apparent velocity were found between redd and nonredd sites. No consistent differences in permeability or apparent velocity were found between streams or over time. Permeability and apparent velocity decreased significantly with depth. Freeze cores were collected from redd and nonredd sites and divided into three 10-cm layers for analysis. Geometric mean diameter, sorting coefficient, fredle index, percent fines <2.00 mm, and percent porosity were highly variable and averaged 11.8 mm, 2.8, 4.2, 17.0 percent, and 19.0 percent, respectively. No significant differences were found among factors tested. Correlations between these gravel indices and permeability and apparent velocity were low. The gravel and intragravel environments appeared to be adequate for larval survival. Measurements did not reveal any clear trends during the incubation period. Brown trout did not by choice or redd construction appear to select or create (by redd construction) a subsurface environment different from the surrounding stream bed.
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Duguid, R. A. "Population genetics and phylogeography of brown trout (Salmo truttal)." Thesis, Queen's University Belfast, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.269048.

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Carlsson, Jens. "Population genetic structure of brown trout in boreal ecosystems /." Umeå : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 2000. http://epsilon.slu.se/avh/2000/91-576-5884-6.pdf.

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Stephen, Alastair B. "Genetic studies in Scottish brown trout (Salmo trutta L.)." Thesis, University of Stirling, 1987. http://hdl.handle.net/1893/2142.

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The Scottish brown trout (Salmo trutta L.) is identified as an important resource which requires responsible and continual management. This study was divided into two parts; an electrophoretic survey of wild trout populations in Scotland, and a quantitative assessment of the genetic component to growth rate in various stocks, grown under hatchery and farm conditions. Sixty wild populations were sampled by various methods. All fish were typed using brain, eye, heart, liver and muscle tissue and starch gel electrophoresis for thirty four enzyme loci, thirteen of which were found to be polymorphic. Gene diversity analysis was conducted on the data collected, 33% of the diversity being attributed to differences between populations, much of the variation was thought to be due to founder effects. Evidence is presented to support a hypothesis that the trout in Scotland are derived from two main post glacial invasion stocks. Future management strategies for wild stocks of Scottish brown trout are discussed. Growth trials were conducted at Howietoun fish farm in order to calculate heritability estimates for growth rate. Hierarchical and factoral crossing schemes were employed, using broodstock from three stocks. Heritability estimates for growth rate were found to be high and it was concluded, significant genetic gains could be achieved if growth rate was the only trait of commercial interest and truncated mass selection was adopted. Attempts were made to investigate the relationship between heterozygosity and growth rate in the hatchery populations. It was concluded that more data were required to make a meaningful assessment, but from this study little evidence exists for a positive correlation between heterozygosity and growth rate. Correlations between early life cycle stages and subsequent growth are discussed.
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McMeel, Oonagh Marie. "Molecular phylogenetics of brown trout (Salmo trutta L.) populations." Thesis, Queen's University Belfast, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.286857.

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Hampton, Thomas M. "Effects of seasonal habitat limitations on the distribution and energetics of stocked salmonids in Lake Moomaw, Virginia." Thesis, This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-03032009-040959/.

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A-Kareem, H. M. "Structure and development of muscle in the rainbow trout (Salmo gairdneri) and the brown trout (Salmo trutta)." Thesis, University of Salford, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.376854.

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Dalzell, David James Blair. "The toxicity of iron to the brown trout, Salmo trutta L." Thesis, University of Nottingham, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.337533.

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Books on the topic "Brown trout"

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Lobón-Cerviá, Javier, and Nuria Sanz, eds. Brown Trout. Chichester, UK: John Wiley & Sons, Ltd, 2017. http://dx.doi.org/10.1002/9781119268352.

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Bray, Jamie J. Experimental rainbow trout stocking program: Rainbow trout, brown trout and brook trout hatchery comparisons. Augusta, Me: Maine Dept. of Inland Fisheries and Wildlife, Division of Fisheries and Hatcheries, 2007.

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Lyons, Nick. Sphinx Mountain and brown trout. Apalachicola, FL: K. Begos, 1997.

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Pellerin, James C. Rainbow trout experimental stocking program: Rainbow trout and brown trout field comparisons. Augusta, Me: Maine Dept. of Inland Fisheries and Wildlife, Division of Fisheries and Hatcheries, 2007.

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Kerr, S. J. Atlas of Brown trout waters in Ontario. [Peterborough, Ont: Ontario Ministry of Natural Resources], 2002.

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Anderson, Richard M. Impact analysis of a flow augmentation program on the brown trout fishery of the Arkansas River, Colorado. [Denver]: Colorado Division of Wildlife, 1994.

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J, Picken M., Shearer W. M, Dunstaffnage Marine Laboratory, and Freshwater Fisheries Laboratory, eds. The Sea trout in Scotland. Oban: Dunstaffnage Marine Research Laboratory, 1990.

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Quantitative ecology and the brown trout. Oxford: Oxford University Press, 1994.

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Pellerin, James C. Rainbow trout experimental stocking program: Rainbow trout and brook trout field comparisons. Augusta, Me: Maine Dept. of Inland Fisheries and Wildlife, Division of Fisheries and Hatcheries, 2007.

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Jarrams, Peter. Sea trout run. London: Black, 1987.

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Book chapters on the topic "Brown trout"

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Vøllestad, L. Asbjørn. "Understanding Brown Trout Population Genetic Structure." In Brown Trout, G1—G72. Chichester, UK: John Wiley & Sons, Ltd, 2017. http://dx.doi.org/10.1002/9781119268352.app.

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Lobón-Cerviá, Javier. "Introduction." In Brown Trout, 1–13. Chichester, UK: John Wiley & Sons, Ltd, 2017. http://dx.doi.org/10.1002/9781119268352.ch1.

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Jonsson, Bror, and Nina Jonsson. "Habitat as Template for Life-Histories." In Brown Trout, 227–49. Chichester, UK: John Wiley & Sons, Ltd, 2017. http://dx.doi.org/10.1002/9781119268352.ch10.

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L'Abée-Lund, Jan Henning, and L. Asbjørn Vøllestad. "Life-history Plasticity in Anadromous Brown Trout." In Brown Trout, 251–65. Chichester, UK: John Wiley & Sons, Ltd, 2017. http://dx.doi.org/10.1002/9781119268352.ch11.

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Huusko, A., A. Vainikka, J. T. Syrjänen, P. Orell, P. Louhi, and T. Vehanen. "Life-History of the Adfluvial Brown Trout (Salmo trutta L.) in Eastern Fennoscandia." In Brown Trout, 267–95. Chichester, UK: John Wiley & Sons, Ltd, 2017. http://dx.doi.org/10.1002/9781119268352.ch12.

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Lobón-Cerviá, Javier, Gorm Heilskov Rasmussen, and Erik Mortensen. "Discharge-Dependent Recruitment in Stream-Spawning Brown Trout." In Brown Trout, 297–318. Chichester, UK: John Wiley & Sons, Ltd, 2017. http://dx.doi.org/10.1002/9781119268352.ch13.

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Rasmussen, Gorm Heilskov. "Population Dynamics of Juvenile Brown Trout (Salmo truttaL.), Recruitment, Mortality, Biological Production and Smolt Yield in Two Danish Baecks." In Brown Trout, 319–67. Chichester, UK: John Wiley & Sons, Ltd, 2017. http://dx.doi.org/10.1002/9781119268352.ch14.

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Piccolo, John J., and Johan Watz. "Foraging Behaviour of Brown Trout." In Brown Trout, 369–82. Chichester, UK: John Wiley & Sons, Ltd, 2017. http://dx.doi.org/10.1002/9781119268352.ch15.

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Höjesjö, J. "Competition Within and Between Year Classes in Brown Trout; Implications of Habitat Complexity on Habitat Use and Fitness." In Brown Trout, 383–400. Chichester, UK: John Wiley & Sons, Ltd, 2017. http://dx.doi.org/10.1002/9781119268352.ch16.

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Aarestrup, Kim, Niels Jepsen, and Eva B. Thorstad. "Brown Trout on the Move - Migration Ecology and Methodology." In Brown Trout, 401–44. Chichester, UK: John Wiley & Sons, Ltd, 2017. http://dx.doi.org/10.1002/9781119268352.ch17.

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Conference papers on the topic "Brown trout"

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Marchildon, M. A., and W. K. Annable. "Hydrodynamic Conditions Surrounding Brown Trout and Rainbow Trout Redds." In World Environmental and Water Resources Congress 2007. Reston, VA: American Society of Civil Engineers, 2007. http://dx.doi.org/10.1061/40927(243)370.

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Lemopoulos, Alexandre, Silva Uusi-Heikkilä, Anti Vasemägi, Ari Huusko, Harri Kokko, and Anssi Vainikka. "Genetic causes and consequences of Brown trout migratory behaviour." In 5th European Congress of Conservation Biology. Jyväskylä: Jyvaskyla University Open Science Centre, 2018. http://dx.doi.org/10.17011/conference/eccb2018/107521.

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Henderson, John W., and Scott J. Kenner. "Application of SMS to Characterize Spawning Habitat for Brown Trout." In Protection and Restoration of Urban and Rural Streams Symposium. Reston, VA: American Society of Civil Engineers, 2004. http://dx.doi.org/10.1061/40695(2004)39.

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Millidine, K. J., I. A. Malcolm, C. N. Gibbins, and R. J. Fryer. "The influence of canalisation on juvenile brown trout (Salmo trutta) habitat." In BHS 11th National Hydrology symposium. British Hydrological Society, 2012. http://dx.doi.org/10.7558/bhs.2012.ns38.

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Quilichini, Yann, Josephine Foata, Bernard Marchand, Antoine Orsini, and Joseph Mattei. "Parasites Communities in Brown Trout Salmo Trutta (Pisces, Teleostei) from Corsican Rivers." In 2006 First International Symposium on Environment Identities and Mediterranean Area. IEEE, 2006. http://dx.doi.org/10.1109/iseima.2006.344962.

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Pereira, Joana, Sara Silva, Pedro R. Almeida, Carlos M. Alexandre, Rita Almeida, Andreia Domingues, Maria Judite Alves, and Catarina S. Mateus. "Genetic Structure and Diversity of Brown Trout (Salmo trutta L.) in Portugal." In SIBIC 2022. Basel Switzerland: MDPI, 2022. http://dx.doi.org/10.3390/blsf2022013104.

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Sanz, Nuria, Antonino Duchi, and Monica Giampiccolo. "Endemic Sicilian Brown Trout Endangered by Hatchery Introgression and Low Gene Diversity." In SIBIC 2022. Basel Switzerland: MDPI, 2022. http://dx.doi.org/10.3390/blsf2022013133.

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Teixeira, Amílcar, João M. Oliveira, Filipe Sá, Nuno Pereira, António Faro, Pedro Segurado, Fernando Miranda, Fernando Teixeira, António Martinho, and Maria Filomena Magalhães. "Resident Brown Trout (Salmo trutta) Populations in Portugal: Status, Threats, and Fishery Management Requirements." In SIBIC 2022. Basel Switzerland: MDPI, 2022. http://dx.doi.org/10.3390/blsf2022013128.

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Vainikka, Anssi, Jenni Prokkola, Alexandre Lemopoulos, Nico Alioravainen, Silva Uusi-Heikkilä, Anti Vasemägi, Pekka Hyvärinen, et al. "Management of human-induced contemporary evolution to maintain and restore genetic diversity in brown trout." In 5th European Congress of Conservation Biology. Jyväskylä: Jyvaskyla University Open Science Centre, 2018. http://dx.doi.org/10.17011/conference/eccb2018/107185.

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Huusko, Ari, Pauliina Louhi, and Maare Marttila. "In-stream restoration in forestry impacted catchments: benefits to stream habitats, brown trout populations and society." In 5th European Congress of Conservation Biology. Jyväskylä: Jyvaskyla University Open Science Centre, 2018. http://dx.doi.org/10.17011/conference/eccb2018/107365.

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Reports on the topic "Brown trout"

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Magnusson, A. K., K. E. LaGory, and J. W. Hayse. The effects of overwinter flowson the spring condition of rainbow and brown trout size classes in the Green River downstream of Flaming Gorge Dam, Utah. Office of Scientific and Technical Information (OSTI), June 2010. http://dx.doi.org/10.2172/982695.

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Magnusson, A. K., K. E. LaGory, and J. W. Hayse. Statistical evaluation of the effects of fall and winter flows on the spring condition of rainbow and brown trout in the green river downstream of Flaming Gorge Dam. Office of Scientific and Technical Information (OSTI), January 2009. http://dx.doi.org/10.2172/946046.

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Dodd, Hope, J. Cribbs, David Bowles, Cameron Cheri, and Jeffrey Williams. Aquatic community monitoring at Effigy Mounds National Monument, 2008?2017. National Park Service, 2023. http://dx.doi.org/10.36967/2300634.

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Dousman Creek, located in northeastern Iowa, is a Class ?B? coldwater stream that supports a trout population and is listed among the Outstanding Iowa Waters (Iowa Department of Natural Resources 2010, 2016). The Heartland Inventory and Monitoring Network (Heartland Network) of the National Park Service (NPS) has been monitoring aquatic communities (fish and invertebrates) in Dousman Creek within Effigy Mounds National Monument (NM) since 2008. Corresponding physical habitat and water quality were also collected during biotic sampling. The objectives of this long-term monitoring program are to assess the status and trends in the biotic stream community and relate these trends to environmental variables. The purpose of this report is to summarize the baseline aquatic community data collected during three sampling events conducted from 2008 to 2017. The fish community was dominated by the intolerant cool/cold-water species Brown trout (Salmo trutta) and Mottled sculpin (Cottus bairdii) in 2008, while more tolerant white sucker (Catostomus comersonii) and Johnny darter (Etheostoma nigrum) were most abundant in 2014. During 2017, fish community composition was more evenly distributed among species present. Benthic invertebrate samples were dominated by the moderately intolerant mayfly genus Pseudocloeon and blackfly genus Simulium in 2008 and 2014, while the invertebrate samples in 2017 were dominated primarily by a tolerant, mayfly taxa (Baetis) and Oligochaetes. The abundance of aquatic invertebrates in 2017 was more than ten times lower than invertebrate abundance in 2008 and 2014. Water quality data collected by the Heartland Network did not indicate any of the five parameters (temperature, dissolved oxygen, pH, specific conductance, or turbidity) exceeded the Iowa Department of Natural Resources water quality standards, however the number of hourly measurements were low (4?20 measurements) depending on year sampled. Three years of data are currently insufficient to fully characterize the stream integrity of Dousman Creek based on fish and invertebrate communities. Continued long-term monitoring of Dousman Creek will allow for better assessment of the biotic integrity and overall quality of the stream.
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Copper avoidance and mortality of juvenile brown trout (Salmo trutta) in tests with copper-sulfate-treated water from West Branch Reservoir, Putnam County, New York. US Geological Survey, 2001. http://dx.doi.org/10.3133/wri994237.

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Lassen Volcanic National Park Cascades frog and eDNA inventory final report. National Park Service, 2023. http://dx.doi.org/10.36967/2300696.

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The Cascades frog (Rana cascadae) is one of two frog species known to occur historically in Lassen Volcanic National Park (LAVO) in Northern California. However, no Cascades frogs have been documented in LAVO for several decades, despite repeated surveys. Threats to the species include natural predators, introduction of fish into historically fishless habitats, diseases like fungal pathogens, airborne drift of pesticides from nearby agricultural areas, ultraviolet (UV-B) radiation, wildfires, and habitat loss from human development and climate change. Objectives of this project were to conduct surveys for Cascades frogs at LAVO using both visual encounter surveys (VES) and environmental DNA (eDNA) surveys at locations with potential for reintroduction, conduct VES and eDNA surveys for potential predators (rainbow trout, brook trout, brown trout, and leeches) to determine locations unsuitable for reintroduction, and to develop a suitability model to assess reintroduction potential within LAVO for Cascades frogs. Fifty locations around LAVO were sampled during this study. Suitability for Cascades frogs was ranked according to suitable vegetation availability, elevation, climatic factors, and perennial water availability. Projected climate data was used to derive future climate suitability for Cascades frogs within and around LAVO. No Cascades frog egg masses, larvae, or adults were detected during VES or eDNA sampling within LAVO in 2021. Pacific tree frogs were observed at 18 sites, indicating suitable larval frog habitat at these sites. At 12 of these 18 sites, trout were not detected with either VES or eDNA sampling and leeches were only detected in two locations. The eDNA survey did not appear to be an effective way to detect leeches, but this method was effective for trout species and Cascades frogs. Climate, vegetation, elevation, and perennial water availability were summarized and combined to identify suitable locations within and around LAVO. Climate data for known locations of Cascades frogs in California were used to define a range of suitable climate conditions for the species and then extrapolated across the Cascade frog?s range in California. Within LAVO, occurrence data were not available and, thus, known habitat preferences were combined with spatial data to establish the location and density of suitable vegetation communities and the availability of perennial water. The most suitable areas within the park were identified to occur along the outer boundary and eastern side of the Park. These locations had optimal climate conditions, suitable vegetation communities and available perennial water sources. Many of the areas with high suitability in LAVO were impacted in recent burns (2021), which will reduce their current overall suitability until the vegetation recovers. Projected climate scenarios suggest that, in general, areas surrounding LAVO will decline in temperature suitability while areas within LAVO will increase. Using all available information, sites (based on sub-watersheds) were determined to be of high, medium, or low reintroduction potential. Sites of high reproduction potential included the Cluster Lakes area; Feather Lake and nearby pond; Horseshoe Lake, Snag Lake and Grassy Creek, and vernal pool near Snag Lake trail; and Willow Lake. All the sites with high reproduction potential will require active management to prepare them for Cascades frogs and to maintain them as suitable habitat into the future.
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